---
product_id: 2526360
title: "Castrol GTX High Mileage 5W-30 Synthetic Blend Motor Oil, 1 Quart, Pack of 6"
brand: "castrol"
price: "€ 233.26"
currency: EUR
in_stock: true
category: "Castrol"
url: https://www.desertcart.hr/products/2526360-castrol-gtx-high-mileage-5w-30-synthetic-blend-motor-oil
store_origin: HR
region: Croatia
---

# Improved Fuel Economy Engine Wear Protection 5W-30 Synthetic Blend Castrol GTX High Mileage 5W-30 Synthetic Blend Motor Oil, 1 Quart, Pack of 6

**Brand:** castrol
**Price:** € 233.26
**Availability:** ✅ In Stock

## Summary

> 🛢️ Keep your high-mileage ride running like new — because every mile counts!

## Quick Answers

- **What is this?** Castrol GTX High Mileage 5W-30 Synthetic Blend Motor Oil, 1 Quart, Pack of 6 by castrol
- **How much does it cost?** € 233.26 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/2526360-castrol-gtx-high-mileage-5w-30-synthetic-blend-motor-oil)

## Best For

- castrol enthusiasts

## Why This Product

- Trusted castrol brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Leak Reducer:** Advanced seal conditioners help minimize leaks, keeping your engine tight and efficient.
- • **Sludge Fighter:** Superior dispersancy formula actively combats sludge buildup for a cleaner engine.
- • **Engine Longevity Booster:** Phosphorus Replacement Technology extends emission system life and protects catalytic converters.
- • **Fuel Efficiency Enhancer:** Formulated to improve fuel economy, saving you money on every mile.
- • **Trusted High Mileage Formula:** Specifically designed for vehicles with over 75,000 miles to maintain peak performance.

## Overview

Castrol GTX High Mileage 5W-30 Synthetic Blend Motor Oil is engineered for vehicles with over 75,000 miles, combining advanced additives and Phosphorus Replacement Technology to protect engine components, reduce leaks, fight sludge, and improve fuel economy. This 6-quart pack meets or exceeds top industry standards, ensuring superior performance and extended engine life.

## Description

Castrol® GTX® High Mileage 5W-30 is specially formulated for vehicles with over 75,000 miles. It's a synthetic blend motor oil that helps extend engine life providing Superior Protection in 7 Critical Areas including corrosion prevention, sludge control, timing and friction wear. It also contains a proprietary additive to protect the emisssion system. Our Phosphorus Replacement Technology reduces harmful phosphorus to protect the catalytic converter and help extend the life of your high mileage vehicle.

## Features

- Phosphorus Replacement Technology helps extend emission system life
- Superior dispersancy that fights sludge build up
- Exceptional oil burn-off protection exceeding industry standards* | Seal conditioners to help reduce leaks
- Advanced additives that help prevent engine wear | Improved Fuel Economy**
- Meets or exceeds the following specifications: API SP/SN PLUS/SN/SM | ILSAC GF-6 | Meets Ford WSS-M2C946-B1 | Meets Ford WSS-M2C961-A1 | * Based on API and ACEA volatility specifications | ** In 5W-20, 5W-30 and 10W-30 grades versus industry specifications

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B008BOG0PG |
| Automotive Fit Type | Universal Fit |
| Best Sellers Rank | #213 in Automotive ( See Top 100 in Automotive ) #4 in Motor Oils |
| Brand Name | Castrol |
| Compatible with Vehicle Type | For use in vehicles with over 75,000 miles, Passenger cars, trucks, and SUVs |
| Container Type | Bottle |
| Customer Reviews | 4.8 4.8 out of 5 stars (8,479) |
| Global Trade Identification Number | 00079191064405 |
| Included Components | Motor Oil |
| Item Type Name | Motor Oil |
| Liquid Volume | 6 Quarts |
| Manufacturer | Castrol |
| Manufacturer Part Number | 06440 |
| Manufacturer Warranty Description | 12 Months |
| Model Number | 06440 |
| SAE J300 Viscosity Grade | 5W-30 |
| Size | 1 Quart, Pack of 6 |
| UPC | 079191064405 |
| Unit Count | 192.0 Fluid Ounces |
| Viscosity Level | Low to Medium |

## Product Details

- **Brand:** Castrol
- **Liquid Volume:** 6 Quarts
- **Package Information:** Bottle
- **SAE J300 Viscosity Grade:** 5W-30
- **Vehicle Service Type:** For use in vehicles with over 75,000 miles, Passenger cars, trucks, and SUVs

## Images

![Castrol GTX High Mileage 5W-30 Synthetic Blend Motor Oil, 1 Quart, Pack of 6 - Image 1](https://m.media-amazon.com/images/I/618MKmHZSUL.jpg)

## Available Options

This product comes in different **Size** options.

## Questions & Answers

**Q: What is the rated mileage for this?**
A: I don't think oil is rated, the engine it goes in is but synthetic oil will last longer than regular oil.

**Q: is this only one 1 quart bottle or six 1 quart bottles?**
A: Six (6) - 1 quart bottles.

**Q: Does this product includes filter?**
A: No filter with the product.

**Q: Is it ok to top off regular oil with some of this oil as needed for a slow oil leak?**
A: I have a beater that i use for grocery shopping and Dr appts. It burns oil possibly worn valve guide seals. A friend told me to use synthetic or high mileage and it should help a little. Since i burn about a quart a month ive used everything from this to little known brands. My car still runs fine, passes inspection, no check engine. Oh by the way using a synthetic or a high mileage did cut down on oil consumption.

## Frequently Bought Together

- Castrol Gtx High Mileage 5W-30 Synthetic Blend Motor Oil, 1 Quart, Pack of 6
- Castrol GTX High Mileage 5W-30 Synthetic Blend Motor Oil, 5 Quarts
- FRAM Extra Guard PH3506, 10K Mile Change Automotive Replacement Interval Spin-On Engine Oil Filter for Select Vehicle Models

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**Shop now:** [https://www.desertcart.hr/products/2526360-castrol-gtx-high-mileage-5w-30-synthetic-blend-motor-oil](https://www.desertcart.hr/products/2526360-castrol-gtx-high-mileage-5w-30-synthetic-blend-motor-oil)

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*Product available on Desertcart Croatia*
*Store origin: HR*
*Last updated: 2026-07-15*